39785 divided by 80 
The aim is to understand the frequency of 80 in 39785.

Going ahead to step 1:
When dividing 3 by 80, we get 0 with a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Append the next digit (9) from the dividend to 3 and continue with: 39 / 80

Advancing to step 2:
80 can be fit into 39 0 times, resulting in a remainder of 39.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 39 leaves us with 39.
Append the next digit (7) from the dividend to 39 and continue with: 397 / 80

Step 3:
The number 80 fits into 397 4 times, leaving a remainder of 77.
Put 4 as the next digit of the answer. 
Result so far: 4.0
Subtracting 320 from 397 leaves us with 77.
Take the next digit (8) from the dividend and append it to 77, then repeat: 778 / 80

Step 4:
The number 80 fits into 778 9 times, leaving a remainder of 58.
Write down 9 as next digit of the result. 
Result so far: 49.0
Subtract 720 from 778 to get 58.
Take the next digit (5) from the dividend and append it to 58, then repeat: 585 / 80

Let's proceed to step 5:
If we divide 585 by 80, we get 7 and a remainder of 25.
Use 7 as the next digit of our solution. 
Result so far: 497.0
Deduct 560 from 585 and we're left with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Moving on to step 6:
80 goes into 250 3 times with a remainder of 10.
Use 3 as the next digit of our solution. 
Result so far: 497.3
If we subtract 240 from 250, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 7:
When dividing 100 by 80, we get 1 with a remainder of 20.
Use 1 as the next digit of our solution. 
Result so far: 497.31
The remainder is 20 after subtracting 80 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Advancing to step 8:
80 can be fit into 200 2 times, resulting in a remainder of 40.
Record the quotient 2 as the next digit in the result. 
Result so far: 497.312
Subtracting 160 from 200 leaves us with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Moving on to step 9:
400 divided by 80 is 5 with a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 497.3125
Subtracting 400 from 400 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 10:
80 goes into 0 0 times with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 497.3125
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 11:
The number 80 fits into 0 0 times, leaving a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 497.3125
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The quotient of the division is 497.3125, and the remainder is 0.0.